Aroma diffuser



FIG. 1 is a first perspective view of an aroma diffuser showing my newdesign;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line portions are included to show unclaimed subject matteronly and form no part of the claimed design.

CLAIM The ornamental design for an aroma diffuser, as shown anddescribed.